9x + 9 = 90 - 9x + 27 solve it
Answers
Step-by-step explanation:
9x + 9 = 90 + -9x + 27
Reorder the terms:
9 + 9x = 90 + -9x + 27
Reorder the terms:
9 + 9x = 90 + 27 + -9x
Combine like terms: 90 + 27 = 117
9 + 9x = 117 + -9x
Solving
9 + 9x = 117 + -9x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '9x' to each side of the equation.
9 + 9x + 9x = 117 + -9x + 9x
Combine like terms: 9x + 9x = 18x
9 + 18x = 117 + -9x + 9x
Combine like terms: -9x + 9x = 0
9 + 18x = 117 + 0
9 + 18x = 117
Add '-9' to each side of the equation.
9 + -9 + 18x = 117 + -9
Combine like terms: 9 + -9 = 0
0 + 18x = 117 + -9
18x = 117 + -9
Combine like terms: 117 + -9 = 108
18x = 108
Divide each side by '18'.
x = 6
Simplifying
x = 6
Answer:
6
Step-by-step explanation:
9x + 9 = 90 - 9x + 27
9x + 9 = -9x + 117
9x + 9x + 9 = 117
18x + 9 = 117
18x = 117 - 9
18x = 108
x = 108/18
x = 6
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